Meat-chopping machine



(No Model.)

J. SHEARGREN. MEAT SHOPPING MACHINE.

No. 478,647. Patented m 12, 1892.

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UNTTED STATES ATENT OFFICE.

JOHN SHEARGREN, OF BURLINGTON, IOWA.

MEAT-CHOPPING MACHINE.

SPEGIFICATION forming part of Letters Patent No. 478,647, dated July 12, 1892. Application filed August 20,1891. Serial No. 403,257. (No model.)

To aZZ whom it may concern:

Be it known that I, JOHN SHEARGREN, a citizen of the United States, residing at Burlington, in the county of Des Moines and State of Iowa, have invented certain new and useful Improvements in Meat-Chopping Machines, of which the following is a specification.

My invention relates to meat-chopping machines of the class having rocking knives cooperating with a rotating chopping-block, as exemplified, for instance, in Letters Patent No. 445,823, granted to me February 3, 1891.

The object of my invention is to provide a cheap, simple, and effective machine, which end I attain by the novel organization of instrumentalities hereinafter specified.

In the accompanying drawings, Figure 1 represents a side elevation of my improved machine, and Fig. 2 a rear elevation thereof with the chopping-block and its appurtenant mechanism removed. Fig. 3 represents a cross-section through one form of the knifecarrying devices, and Fig. 4 a modification thereof.

Unless otherwise indicated theparts are of usual approved construction.

The driving end of the machine I call the front and the chopping-block end the rear.

The drawings show supporting standards or frames A, mounted upon opposite sides of one end of a bed-plate B,onwhich a drivingshaft O is mounted. Crank-wheels D, fixed on opposite ends of this shaft, are connected by crank-pins f with pitmen 0, connected by intermediate wrist-pins c with radius-bars E, secured at bottom on a shaft F, rocking in suitable bearings in the bed-plate and connected at their upper ends with wrist-pins b on one arm of elbow-levers K, rocking in bearings 61 on the radius-bars E. The opposite arms of each of these elbow-levers are connected by wrist-pins c with links M on a shaft N, rocking in bearings n on the standard A. A rod R, connecting the central portions of the elbow-levers K, supports a sleeve S, provided with a series of brackets s, to.

which a series of arc-shaped knives P are secured. By this mode of construction the knives are adapted to be adjusted around the shaft in any desired relation and may be secured thereon by suitable clam ping-screws P. Their relation to the chopping-block might also be varied by making the pitmen O or links M adjustable longitudinally in wellknown ways. This organization also admits of the knives being turned up out of the Way around the shaft by detaching the upper arm of the elbow-levers K from the radius-bars E, as shown in dotted lines in Fig. 3.

The elbow-levers K constitute a means for connecting the shaft R of the knife-carrying sleeve S with the rocking radius-bars E. The links M are pivoted at n to a stationary part of the frame, and they extend between the radius-bars E and across them, their upper ends being connected to the elbow-levers in rear of the radius-bars. By this arrangement the-knives are rocked easily and efficiently and are held down to their work by very simple mechanism.

Fig. 4 shows a modification of the apparatus delineated in Fig. 3, in which arc-shaped holders K are substituted for the elbow-levers above described, chains h being substituted for the links M. These chains are secured to horns K K on opposite ends of each arcshaped or sector holder, which they partly encircle in opposite directions, and are secured at their other ends to hornso o'on stationary side bars W, the rocking movement of the knives being given by the reciprocation of the radius-bars, as above described.

Dotted lines in Fig. 1 illustrate the movements' of the knife, which need not be further described.

The chopping-block T is shown as supported upon friction-rollers t, vertically adjustable by mechanism such as shown in my patcut above mentioned, which need not be further described, as it constitutes no part of the invention herein claimed.

I claim as of my own invention- 1. The combination, substantially as hereinbefore set forth, of a chopping-block, a bedplate or frame, radius-bars pivoted at their lower ends, to the bed-plate and rocking in parallel vertical planes, a knife carrying sleeve, a rod extending through the sleeve, connections between said rod and the upper ends of the radius-bars, a crank-wheel, pit men connected to the crank-wheel and connected to the radius-bars between their piv- TOG otal connections with the main frame and their connection With the knife carrying sleeve, and connections between the knifecarrying sleeve and a stationary part of the main frame. 2. The combination, substantially as herelnbefore set forth, of a rotary chopping-block, a bed-plate or frame, radius-bars pivoted to the bed-plate at their lower ends and rocking in parallel vertical planes, a knife-carrying sleeve, a rod extending through the sleeve, elbow-levers secured to the rod and pivotally connected with the radius-bars at their upper ends, links pivotally connected with the rearwardly-extending arms of the elbow-levers and pivotally connected with a stationary part of the frame, a crank-Wheel, and pitmen connecting the crank-wheel with the rocking radius-bars between their upper and their lower ends.

3. The meat-chopping machine hereinbcfore described, consisting of the combination of a bed-plate, a standard or supporting-frame, a crank-shaft mounted therein, crank-wheels fixed on opposite ends thereof, radius-bars vibrating in parallel planes on pivots on the main frame, pitmen connecting the crank-' JOHN SHEARGREN.

Witnesses:

NILs ANDERSON, O. J. STREED. 

